Foundation Plus
11th April 1987
- 1Simultaneous Equations3 marks
5 teas and 1 cake cost £11.70. 3 teas and 2 cakes cost £11.85. Find the price of a tea.
- 2Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 54. Work out y when x = 10.
- 3Similar Shapes (Area and Volume)3 marks
Two similar shapes have lengths in the ratio 1 : 2. The smaller has an area of 13 cm^2. Work out the area of the larger.
- 4Probability (Higher)3 marks
A biased coin lands on heads with probability 0.25. It is thrown 500 times. How many heads would you expect?
- 5Frequency Trees3 marks
180 people were surveyed. 50 were adults, of whom 20 said yes. 35 of the children said yes. How many said yes altogether?
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